/usr/include/dolfin/mesh/MeshRenumbering.h is in libdolfin-dev 1.4.0+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// This file is part of DOLFIN.
//
// DOLFIN is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// DOLFIN is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// Modified by Garth N. Wells, 2011.
//
// First added: 2010-11-27
// Last changed: 2011-01-16
#ifndef __MESH_RENUMBERING_H
#define __MESH_RENUMBERING_H
#include <vector>
namespace dolfin
{
class Mesh;
/// This class implements renumbering algorithms for meshes.
class MeshRenumbering
{
public:
/// Renumber mesh entities by coloring. This function is currently
/// restricted to renumbering by cell coloring. The cells
/// (cell-vertex connectivity) and the coordinates of the mesh are
/// renumbered to improve the locality within each color. It is
/// assumed that the mesh has already been colored and that only
/// cell-vertex connectivity exists as part of the mesh.
///
/// *Arguments*
/// mesh (_Mesh_)
/// Mesh to be renumbered.
/// coloring (_std::vector<std::size_t>_)
/// Mesh coloring type.
/// *Returns*
/// _Mesh_
static Mesh renumber_by_color(const Mesh& mesh,
std::vector<std::size_t> coloring);
private:
static void compute_renumbering(const Mesh& mesh,
const std::vector<std::size_t>& coloring,
std::vector<double>& coordinates,
std::vector<std::size_t>& connectivity);
};
}
#endif
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